Keystones — Lintel
Five GCSE retrieval questions · 26 January 2021 · mathsvault.uk/keystones
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1. Number Converting to standard form
0.00092
Answer: 9.2 × 10^-4 -
2. Algebra Factorising monic quadratics
Factorise: x² + x - 6
Answer: (x + 3)(x - 2) -
3. Geometry SOHCAHTOA — missing length
Adjacent = 19cm, angle = 48°. Find opposite
Answer: 21.cm -
4. Ratio Mixed ratio problems
Simplify: 6:12:18
Answer: 1:2:3 -
5. Statistics Mean
Calculate the mean of: 8, 47, 48, 32, 19, 20
Answer: 29